C#微信公众号开发 微信事件交互

[HttpGet]
[ActionName("Index")]
publicActionResult Get(stringsignature,stringtimestamp,stringnonce,stringechostr)
{
  if(CheckSignature.Check(signature, timestamp, nonce, token))
  {
    returnContent(echostr);
  }
  else
  {
    returnContent("err");
  }
[HttpPost]
[ActionName("Index")]
publicActionResult Get(stringsignature,stringtimestamp,stringnonce)
{
   StreamReader sr =newStreamReader(Request.InputStream, Encoding.UTF8);
   XmlDocument doc =newXmlDocument();
   doc.Load(sr);
   sr.Close();
   sr.Dispose();
  
   WxMessage wxMessage =newWxMessage();
   wxMessage.ToUserName = doc.SelectSingleNode("xml").SelectSingleNode("ToUserName").InnerText;
   wxMessage.FromUserName = doc.SelectSingleNode("xml").SelectSingleNode("FromUserName").InnerText;
   wxMessage.MsgType = doc.SelectSingleNode("xml").SelectSingleNode("MsgType").InnerText;
   wxMessage.CreateTime =int.Parse(doc.SelectSingleNode("xml").SelectSingleNode("CreateTime").InnerText);
  
   if(wxMessage.MsgType =="event")
   {
     wxMessage.EventName = doc.SelectSingleNode("xml").SelectSingleNode("Event").InnerText;
     if(!string.IsNullOrEmpty(wxMessage.EventName) && wxMessage.EventName =="subscribe")
     {
       stringcontent ="您好，欢迎访问garfieldzf8测试公众平台";
       content = SendTextMessage(wxMessage, content);
       returnContent(content);
    }
  }
      returnContent("");
}
  
  
privatestringSendTextMessage(WxMessage wxmessage,stringcontent)
{
   stringresult =string.Format(Message, wxmessage.FromUserName,wxmessage.ToUserName,DateTime.Now.Ticks, content);
   returnresult;
}
  
  
 publicstringMessage
 {
   get
   {
     return@"
           
           
           {2}
           
           
         ";
      }
  }
publicclassWxMessage
 {
    publicstringToUserName {get;set; }
    publicstringFromUserName {get;set; }
    publiclongCreateTime {get;set; }
  
    publicstringContent {get;set; }
    publicstringMsgType {get;set; }
    publicstringEventName {get;set; }
    publicstringEventKey {get;set; }
 }